Search for charged Higgs bosons at LEP 2

被引：12

作者：

Abreu, P

Adam, W

Adye, T

Adzic, P

Albrecht, Z

Alderweireld, T

Alekseev, GD

Alemany, R

Allmendinger, T

Allport, PP

Almehed, S

Amaldi, U

Amapane, N

Amato, S

Anassontzis, EG

Andersson, P

Andreazza, A

Andringa, S

Antilogus, P

Apel, WD

Arnoud, Y

Åsman, B

Augustin, JE

Augustinus, A

Baillon, P

Bambade, P

Barao, F

Barbiellini, G

Barbier, R

Bardin, DY

Barker, G

Baroncelli, A

Battaglia, M

Baubillier, M

Becks, KH

Begalli, M

Behrmann, A

Beilliere, P

Belokopytov, Y

Belous, K

Benekos, NC

Benvenuti, AC

Berat, C

Berggren, M

Bertini, D

Bertrand, D

Besancon, M

Bigi, M

Bilenky, MS

Bizouard, MA

机构：

[1] FCUL, IST, LIP, PT-1000 Lisbon, Portugal

[2] Iowa State Univ Sci & Technol, Dept Phys & Astron, Ames, IA 50011 USA

[3] Univ Instelling Antwerp, Dept Phys, BE-2610 Wilrijk, Belgium

[4] VUB, ULB, IIHE, BE-1050 Brussels, Belgium

[5] Univ Etat Mons, Fac Sci, BE-7000 Mons, Belgium

[6] Univ Athens, Phys Lab, GR-10680 Athens, Greece

[7] Univ Bergen, Dept Phys, NO-5007 Bergen, Norway

[8] Univ Bologna, Dipartimento Fis, IT-40126 Bologna, Italy

[9] Ist Nazl Fis Nucl, IT-40126 Bologna, Italy

[10] Ctr Brasileiro Pesquisas Fis, BR-22290 Rio De Janeiro, Brazil

[11] Pontificia Univ Catolica Rio de Janeiro, Dept Fis, BR-22453 Rio De Janeiro, Brazil

[12] Univ Estadual Rio de Janeiro, Inst Fis, Rio De Janeiro, Brazil

[13] Comenius Univ, Fac Math & Phys, SK-84215 Bratislava, Slovakia

[14] Coll France, Phys Corpusculaire Lab, IN2P3, CNRS, FR-75231 Paris 05, France

[15] CERN, CH-1211 Geneva 23, Switzerland

[16] ULP, Inst Rech Subatom, IN2P3, CNRS, FR-67037 Strasbourg, France

[17] NCSR Demokritos, Inst Nucl Phys, GR-15310 Athens, Greece

[18] Acad Sci Czech Republ, Inst Phys, FZU, High Energy Phys Div, CZ-18040 Prague 8, Czech Republic

[19] Univ Genoa, Dipartimento Fis, IT-16146 Genoa, Italy

[20] Ist Nazl Fis Nucl, IT-16146 Genoa, Italy

[21] Univ Grenoble 1, Inst Sci Nucl, IN2P3, CNRS, FR-38026 Grenoble, France

[22] HIP, FI-00014 Helsinki, Finland

[23] Joint Nucl Res Inst, Head Post Off, RU-101000 Moscow, Russia

[24] Univ Karlsruhe, Inst Expt Kernphys, DE-76128 Karlsruhe, Germany

[25] Inst Nucl Phys, PL-30055 Krakow, Poland

[26] Univ Min & Met, PL-30055 Krakow, Poland

[27] Univ Paris Sud, Lab Accelerateur Lineaire, IN2P3, CNRS, FR-91405 Orsay, France

[28] Univ Lancaster, Sch Phys & Chem, Lancaster LA1 4YB, England

[29] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England

[30] Univ Paris 06, LPNHE, IN2P3, CNRS, FR-75252 Paris 05, France

[31] Univ Paris 07, LPNHE, IN2P3, CNRS, FR-75252 Paris 05, France

[32] Univ Lund, Dept Phys, SE-22363 Lund, Sweden

[33] Univ Lyon 1, INPL, IN2P3, CNRS, FR-69622 Villeurbanne, France

[34] Univ Aix Marseille 2, CPP, IN2P3, CNRS, FR-13288 Marseille 09, France

[35] Univ Milan, Dipartimento Fis, IT-20133 Milan, Italy

[36] Ist Nazl Fis Nucl, IT-20133 Milan, Italy

[37] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

[38] Charles Univ, NC, Nucl Ctr MFF, Areal MFF, CZ-18000 Prague 8, Czech Republic

[39] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

[40] Natl Tech Univ Athens, Dept Phys, GR-15773 Athens, Greece

[41] Univ Oslo, Dept Phys, NO-1000 Oslo 3, Norway

[42] Univ Oviedo, Dept Fis, ES-33007 Oviedo, Spain

[43] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[44] Univ Padua, Dipartimento Fis, IT-35131 Padua, Italy

[45] Ist Nazl Fis Nucl, IT-35131 Padua, Italy

[46] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[47] Univ Rome 2, Dipartimento Fis, IT-00173 Rome, Italy

[48] Ist Nazl Fis Nucl, IT-00173 Rome, Italy

[49] Univ Roma 3, Dipartimento Fis, IT-00146 Rome, Italy

[50] Ist Nazl Fis Nucl, IT-00146 Rome, Italy

来源：

PHYSICS LETTERS B | 1999年 / 460卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(99)00771-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for pair produced charged Higgs bosons has been performed in the high energy data collected by DELPHI at LEP with root s = 161, 172 and 183 GeV. The analysis uses the tau nu tau nu, c (s) over bar tau nu and c<(sc)over bar>s final states and a combination of event shape variables, di-jet masses and jet flavour tagging for the separation of a possible signal from the dominant W+W- and QCD backgrounds. The number of selected events has been found to be compatible with the expected background. The lower excluded value of the H+/- mass obtained by varying the H+/---> hadrons decay branching ratio has been found to be 56.3 GeV/c(2). (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：484 / 497

页数：14

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